Method of reinforcing a board.



J.N.HAHN. 3 METHOD OF REINFORCING A BOARD.

- Patented Apr. 11, 1916.

APPLICATION FILED SEPT. 17. 1915- J. N. HAHN.

METHOD OF REINFORCING A BOARD.

APPLICATION FILED SEPT- 17; 1915- I Patented Apr. 11,1916.

3 SHEETS-SHEET 2.

e P e a a q q fiia a )7 Q e m I O Q a 1 G 6 e 5 G G G C Q Q C G a a 7; ae e A Q 5 Q Q a I I Q G 6 a Q G a a J. N. HAHN. METHOD OF REINFORCING ABOARD.

APPLICATION FILED SEPT- 17. I915.

Patented Apr. 11, 1916.

3 SHEETS-SHEET 3- JOHN N. HAHN, or CLEVELAND," onro.

.METHOD OF REINFORCING A BOARD.

Specification of Letters Patent, Patented Apr. 11, 1916.

Continuation of application Serial No. 12,887, filed March 8, 1915. Thisapplication filed September 17,

- v 1915. Serial No.51,22.

To all whom it may concern:

Be it known that I, JOHN N. HAHN, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented a new and useful Improvement in Methods of Reinforcing a Board,of which the following is a specification, the principle of theinvention being herein explained and the. best mode in which I havecontemplated applying that principle, so as to distinguish it from otherinventions.

M invention pertains to a method of rein orcing board material whetherof indeterminate or measured length prior to putting it to somemanufacturing purpose. The idea, as "feasibly exemplified in thedrawings, comprises the affixing to, creasing and bending withan'artificial piece of stock of a metal member having prongs pr0 ectingtherefrom. Preferably such prongs are struck-out and therefore integraltongues arranged according to some definite plan over the area of themember and all projecting in the same general direction. This allegedlynovel conception of automatically afiixing reinforcement continuouslyacross a board is of record in my copending applicationSerial Number12,88 7, filed March 8, 1915. This application is therefore acontinuation of the earlier application just identified, as to allmatter common to the two applications.

- Accordingly, my method consists in automatically applying and sinceadvisable also clenching a given length of strap-iron or other suitablemetal area to a board" preparatory to employing the same as a part ofsome finished industrial product or pack age. Preferably the procedureis cont1nuous and progressively across or along the board. My inventioneffects a smooth con- 'tinuity or stretched application of a flexiblemetal reinforcing *strip of given length preparatory to -clenching upona-fiexible paper or fiber board sheet of approximately like length. Theadvantages of neatness,

firmness and strength are attained in a manner not. possible whereseparate slats or boards are so reinforced. When the strapiron and boardare both flexible, an association of,- the. two after the manner of thisinvention enables simple manufacturing expedients to impart thedesiredconformation to'both at once by first creasing'and then 'view theinvention consists of the novel combination of steps as hereinafter morespeclfieally described and illustrated in the accompanying drawings,wherein is shown preferred and modified structural agencies,

but it is to be understood that changes, va-.

riations and modifications can be resorted to which come within thescope of the claims hereunto appended.

Figure I is a side elevation of a machine adapted to perform my method.Fig." II

is a top plan of one portion thereof- Fig. III is an enlarged brokendetail showing two succeeding steps. Fig. IV is an enlarged sectiontaken on line IV-IV of Fig. I. Fig. V is a plan of a piece of boardmaterial reinforced after the manner of my invention and also creasedalong predetermined lines. Fig. VI is a fragmentary section I on line ofFig. V. Fig. is an enlarged section taken through the "middle of Fig. V.Fig. VIII is a similarly enlarged bottom plan of a portion of Fig. VII.Fig. IX-is a perspective view of the board shown in Fig. V after thesame has been bent up as determined by the creases thereacross. Fig. Xis a side elevation of a simplified modification for performing only theconcluding operations.

Fig. XI is an enlarged section on line FIT- XI of Fig. X. Fig. XII is aview corresponding to Fig. XI similarly enlarged and showing thereinforcing member itself reinforced. Fig. XIII is a viewcorrespondingto Fig- V showing a reinforcing member of different shape applied to aboard.

Advertingnow to the drawings in order i to better understand thefollowing description of the arrangement and operation thereof, it isstated at the outset that Fig. I illustrates a mode of practising, as acontinuous operation of a single machine, the

. steps required to fashion three metal strips M ofindefinite lengthwith metal prongs P and thereaftersuccessively applying the same alongfiber board material B having a limited range of flexibility, nextcausing the prongs to enter and penetrate, then clenching Jthe tips ;0thereof and finally creasing and scoring-up as required in the making ofboxes, and as appears in Figs. V and VI and IX. Fig. I is furthermoreshown as applying reinforcement to a series of separate boards'B whichhave been cut to a specific size suited to some particular kind andshape of box. I would have it clearly understood that I do not limitmyself in any way either to the kind of board material or vto the mannerin which it is supported or moved along. Nor have I any reason tobelieve that the prior art whether inerely practised or patented as wellcompels me to limit the scope of this application to any specificcharacter of pronged reinforcing member or the manner of its automaticap-' plication to the board material that may have been selected.

The preferred type of machine as I have constructed and successfullyoperated it comprises three pairs of standards 1, 2 and 3'supported inan elevated position in any suitable manner thereby and a feed'table 4having its advanced end beveled underneath at 5 near the standard 3.Anothertable 6 is supported in some feasible manner beyond thestandard-3 and has that end which is nearest the same likewise beveledat 7 Supported in an inclined positionbetween the standards 2 and 3 isanother feed table 8 provided above with three longitudinally a spacetherebetween of sufficient size for the passageof the boards B. Thelatter are,

caused to move along the table 4 by means 'of a pair of feed rollers 11adjacent the standard 1 and another pair of feed rollers each designatedas 12 and adjacent the standard 2. The distance between the roll ers 11and the rollers 12 is such that a particular board is always fed alongby either one or the other in a well known manner. The upper ends of thepair of standards 1 are fashioned as bearings suited to support theshaft l3 e f'a large roller l l upon which three rollers 14 are mounted.Each of these rollers has wound uponit an indefinite 1 length of metalstrips M commonly known duplicated parts of the machine as performsuccessive operations upon or in the handling of the strips M will beemployed.

The standards 2 support in a suitable upright guide-way a journal box 15in which the shaft 16 of a rotary member 17 having a series ofperipheral dies 18 moves. conformation of these dies is clearly seen inFig. IV. Superposed above the journal box 15 is another journal box 19which receives the shaft 20 of a rotary member 21 having peripherallyprojecting punches 22 which are similarly spaced as the dies 18 andadapted to project therein as appears in both Figs. 1 and IV. Theelevation of the journal box 19 may be adjusted by means of a manuallyoperable screw 23 which passes through a top cross-bar 24 and supportssuch box. This punch and die mech' anism is adapted to strike-out theprongs P of the shape seen in Fig. XI, and progressively so, along thestrips M by a continuous andpositive action which may be presumed. v

The standards 3 likewise support in suitable guide-ways a journal box 25adapted to mount the shaft 26 of a plain metal roller 27 the uppermostsurface of which is substantially level with the top of the tables 4 and6. Higher up the standards 3 similarly support a journal box 28 adaptedto mount the shaft 29 of another metal roller 30 the lowermost surface.of which is to be spaced a distance from the roller 27 corresponding tothe combined thicknesses of the'particular board material B and thereinforcing member M which have been selected. The control of thespacing between the rollers 27 and 30 is similarly accomplished by meansof a screw 31 passing through a bar 32 and adapted to carry the journalbox 28. It is of importance to notice the arrows which indicate thedirection of rotation of the rollers 27 and 30. Any feasible powerconnection for driving the rollers 27 and 30 will answer and thereforeneed not be and has not been shown. Beyond the standards 3 ma positionbelow and'above the table 6 are opposed male and female creasing rollers33 and 33 respectively which are purposed to impart creases to thefinished product in the fiat along the four lines 6 in the board and thesuperimposed four'lines m across the strips, preparatory to scoring-upalong such creased mes.

The operation of the machine is as fol- The lows: The speed of travel ofthe boards B and the reinforcing member M having'been adjusted tocorrespond to the strip-M as it is unrolled and drawn forwardly betweenthe punch and die is subject to the operationpfhaving pointed prongsstruck-out at intervals along the middle thereof. Thereafter it passesdownwardly along the table 8 the prongs P in the meantime moving throughthe channels 9 to converge toward the most advanced of the. boards B.The

tips 10 of the prongs will begin to penetrate and enter the board somelittle distance prior 'to passage between the narrowest space betweenthe rollers 27 and 30 as clearly appears in Fig. III. Thereafter theprongs progressively penetrate along their" own length through the boardB to be finally bent backwardly or clenched against the under surface ofthe board at the narrowest.

point. The completion of such final afiixing operation is likewiseclearly seen in Fig. III and is the more eifectivelyiaccomplished owingto the rotation of the roller 27 in opposition to the direction oftravel of .the stock; An inspection of FigsuVII and VIII which have beencopied from my earlier application filed March 8, 1915, Serial Number12,887, discloses the appearance of board material reinforced by acontinuous metal strip having integral prongs penetrating therefrom aand clenched there against by machine operation. In this connectionmention is made that ,Figs. V and IX are also copied from the sameapplication'just identified and are again shownin this application inorder to r'emphasize the manufacturing objects and practical utility ofthe subject matter of this application.

. The modification to which Fig. X has ref- 8 erence resides in theomission from the mashape.

pair of standards 34: suitably support at.

, 35 their upper ends a shaft 35 of a roller 36" chine of the maleandfemale die mechanism for first'fashioning the prongsupon the metalreinforcing member of whatever According to this modification a uponwhich is wound a reinforcing'member which has already had prongsstruck-out therefrom.- Such pronged, member is thereafter similarlyconducted along the same table 8 and otherwise handled as has alreadybeen described. It will be noticed also that theboard material b is inthis view.

- shown to be a continuous piece of material.

'In'this connection it may be well to reiterate that the successfulpractic'eof my in this application; the further to test the feasibilityof having the diflerent kind of reinforcing member m which is mainlyrectangular in shape and also includes a longitudinally extendingconnecting portion at and a plurality of crosswise connecting portions11?. The prongs have been designated as g).

It should be understood that the term It was with the preceding inboard.as used in this application refers to and may mean any kind ofmaterial including fiber board and straw board, corrugated paper, ofwhatsoever width, length, thickness or area.

I claim: 1

I '1. The method of reinforcing I a fiber board, which consists inpresenting thereto a pronged metal member while both' the board andmember are under tension such that the prongs of the memberprojecttoward the board, and exerting a compressive i force'to cause theprongs to become clenched in stretched relation upon the board, wherebyto effect acontinuously smooth, taut and permanent application of eachto the other.

2. The method of reinforcing a flexible fiber box blank, which consists,in 'progrese sively applying integral prongs of a metal member instretched continuity along said board while both blank and member arecausing the maintained under tension,

prongs to penetrate and become clenched to ,said blank, and finallycreasing "said board and strip' together whereby uniformly to span bothlocally. j

Signed by me, this15th day of September,

- JOHN N. HAHN.

